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Lyle and Louise: The Smoking Gun™ Gunshot Residue
Determine if the suspicious powder found on several surfaces at crime scenes is gunpowder or another substance.
Supplier: Crosscutting Concepts LLC VXHLLGSR
Includes: SEM data for 12 particles, six positive and negative control swabs, gunshot residue swabs taken from six different surfaces, 50 alcohol swabs, pipets for each group, six bottles of diphenylamine, six bottles of sodium rhodizonic acid, fully illustrated teacher's manual with technique background
Requires : Lab gloves for each student, surfaces for alcohol swab tests (aluminum foil, weigh boats or Petri dishes), ruler, distilled water
Description
- Students perform presumptive tests to determine if powder from several surfaces is gunpowder
- Analyze gunpowder with a scanning electron microscope (SEM) using a set of video clips filmed at the SEM lab at Marshall University
- Receive a hard copy of the graphs, images and other evidence from the SEM to determine if the substance is gunpowder
Order Info
For up to 30 students working in six groups.
Specifications
| 9 to Undergraduate | |
| Fully illustrated instructors manual, 12 fired bullets (2 bullets per group), 6 photos per group of microscopic bullet striations from the evidence bullets, 6 protractors, 6 magnifiers | |
| Lab gloves for each student, surfaces for alcohol swab tests (aluminum foil, weigh boats or petri dishes), ruler, distilled water | |
| 30 Students |
| For teaching if the suspicious powder is gunpowder | |
| Mystery Of Lyle And Louise: The Smoking Gun™ Gunshot Residue Forensic Science Curriculum Kit | |
| Room temperature |
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